205641387

素因数分解:

$3^2\times 7^2\times {\mathrm{317}}^1\times {\mathrm{1471}}^1$

素因数の和:1808

約数の個数: 36

約数和(自身を含む): 346859136

約数和(自身を除く): 141217749

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 317, 441, 951, 1471, 2219, 2853, 4413, 6657, 10297, 13239, 15533, 19971, 30891, 46599, 72079, 92673, 139797, 216237, 466307, 648711, 1398921, 3264149, 4196763, 9792447, 22849043, 29377341, 68547129, 205641387]

約数ペア:

[(1, 205641387), (3, 68547129), (7, 29377341), (9, 22849043), (21, 9792447), (49, 4196763), (63, 3264149), (147, 1398921), (317, 648711), (441, 466307), (951, 216237), (1471, 139797), (2219, 92673), (2853, 72079), (4413, 46599), (6657, 30891), (10297, 19971), (13239, 15533)]